In Loop Output Place Custom Field Content In Between Paragraphs

After researching this, here is what works for me:

<?php
$paragraphAfter= 1; //show box after selected paragraph
$content = apply_filters('the_content', get_the_content());
$content = explode("</p>", $content);
for ($i = 0; $i <count($content); $i++) {
if ($i == $paragraphAfter) { ?>
<!-- START OF BLOCKQUOTE -->
stuff
<!-- END OF BLOCKQUOTE -->
<?php
}
echo $content[$i] . "</p>";
} ?>

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